Optics - Waters ACQUITY Refractive Index Detector Overview And Maintenance Manual

1 The ACQUITY Refractive Index Detector

Optics

The detector's optics bench assembly consists of these components:
• Source lamp
• Lamp lens mask
• Lamp lens
• Flow cell, with sample and reference sides
• Mirror
• Mirror mask
• Collimating lens
• Stray light mask
• Dual-element photodiode
The following figure shows the path of the light beam as it passes through the
components in the optics bench assembly.
Optics bench assembly light path:
Mirror
Flow cell
Flow cell lens
Mirror mask
32 October 13, 2014, 715003547 Rev. C
Stray light mask
Dual-element photodiode
Source lamp
Lamp mask
Lamp lens